[20251207] BOJ / G5 / 상범 빌딩 / 김민진

zinnnn37/202512/7 BOJ G5 상범 빌딩.md

@@ -0,0 +1,104 @@
+```java
+import java.io.*;
+import java.util.ArrayDeque;
+import java.util.Queue;
+import java.util.StringTokenizer;
+
+public class BJ_G5_상범_빌딩 {
+
+    private static final int[] dx = { 0, 1, 0, -1, 0, 0 };
+    private static final int[] dy = { 1, 0, -1, 0, 0, 0 };
+    private static final int[] dz = { 0, 0, 0, 0, 1, -1 };
+
+    private static final BufferedReader  br = new BufferedReader(new InputStreamReader(System.in));
+    private static final BufferedWriter  bw = new BufferedWriter(new OutputStreamWriter(System.out));
+    private static final StringBuilder   sb = new StringBuilder();
+    private static       StringTokenizer st;
+
+    private static int L, R, C; // 층 행 열
+    private static char[][][]    building;
+    private static boolean[][][] visited;
+    private static Queue<Node>   q;
+
+    private static class Node {
+        int floor;
+        int x;
+        int y;
+        int cnt;
+
+        Node(int floor, int x, int y, int cnt) {
+            this.floor = floor;
+            this.x = x;
+            this.y = y;
+            this.cnt = cnt;
+        }
+
+    }
+
+    public static void main(String[] args) throws IOException {
+        while (init()) {
+            sol();
+        }
+        bw.write(sb.toString());
+        bw.flush();
+        bw.close();
+        br.close();
+    }
+
+    private static boolean init() throws IOException {
+        st = new StringTokenizer(br.readLine());
+        L = Integer.parseInt(st.nextToken());
+        R = Integer.parseInt(st.nextToken());
+        C = Integer.parseInt(st.nextToken());
+
+        if (L == 0) return false;
+
+        building = new char[L][R][C];
+        visited = new boolean[L][R][C];
+        q = new ArrayDeque<>();
+        for (int i = 0; i < L; i++) {
+            for (int j = 0; j < R; j++) {
+                String line = br.readLine();
+                for (int k = 0; k < C; k++) {
+                    building[i][j][k] = line.charAt(k);
+
+                    if (building[i][j][k] == 'S') {
+                        q.offer(new Node(i, j, k, 0));
+                        visited[i][j][k] = true;
+                    }
+                }
+            }
+            br.readLine();
+        }
+        return true;
+    }
+
+    private static void sol() {
+        while (!q.isEmpty()) {
+            Node cur = q.poll();
+
+            if (building[cur.floor][cur.x][cur.y] == 'E') {
+                sb.append("Escaped in ").append(cur.cnt).append(" minute(s).\n");
+                return;
+            }
+
+            for (int d = 0; d < 6; d++) {
+                int nz = cur.floor + dz[d];
+                int nx = cur.x + dx[d];
+                int ny = cur.y + dy[d];
+
+                if (OOB(nz, nx, ny) || visited[nz][nx][ny] || building[nz][nx][ny] == '#') continue;
+
+                q.offer(new Node(nz, nx, ny, cur.cnt + 1));
+                visited[nz][nx][ny] = true;
+            }
+        }
+        sb.append("Trapped!\n");
+    }
+
+    private static boolean OOB(int floor, int x, int y) {
+        return floor < 0 || L <= floor || x < 0 || R <= x || y < 0 || C <= y;
+    }
+
+}
+```